Get a smooth finish on the bottom of your kiln fired-projects with Bullseye ThinFire Shelf Paper. ThinFire Shelf Paper makes clean-up quick and easy. Each piece is good for one firing only.br> This product is manufactured by Bullseye. Slumpy's proudly manufactures and distributes a variety of products. For the most up to date product information, vendor news, and best practices, click here.